Universal Water Disinfection by the Introduction of Fe-N-3 Traps between g-C3N4 Layers under Visible Light
文献类型： 外文期刊
作者： Pu, Ling 1 ; Wang, Jiying 2 ; Hu, Zhao 4 ; Zhang, Yujiao 1 ;
作者机构： 1.Guizhou Acad Agr Sci, Inst Anim Husb & Vet Med, Guiyang 550005, Peoples R China
2.Huaihua Polytech Coll, Coll Anim Sci & Technol, Huaihua 418000, Peoples R China
3.Hunan Agr Univ, Coll Vet Med, Changsha 410000, Peoples R China
4.Guizhou Univ, Ctr R&D Fine Chem, Natl Key Lab Green Pesticide, Key Lab Green Pesticide & Agr Bioengn,Minist Educ,, Guiyang 550025, Guizhou, Peoples R China
期刊名称：ACS OMEGA （ 2022影响因子：4.1； 五年影响因子：4.0 ）
ISSN： 2470-1343
年卷期： 2023 年 8 卷 30 期
收录情况： SCI
摘要： Efficient inactivationof bacteria in the sewage viaa photocatalyticprocess represents a promising strategy for the efficient chemicalutilization of solar energy. Herein, uniformly dispersed Fe atomswere embedded between layers of g-C3N4 photocatalysts(CNFx), which were facilely prepared by thermal treatment.The optimized photocatalyst (CNF100) first showed excellentphotoactivity for killing a variety of bacteria (93.0% for E. coli, 93.9% for Salmonella, and96.2% for S. aureus) under visiblelight irradiation. The superior activity can be attributed to theformation of shallow electron traps (Fe-N-3) thatcan capture excitons of excited states, which promote the charge transferand energy transfer process of activated adsorbed molecular oxygen,respectively, forming reactive oxygen species, improving separationefficiency of photoexcited electrons and holes, and the Fe-N-3 traps can also be used as photosensitive sites to broadenthe absorption range of visible light. This strategy of constructingshallow electronic traps lays a theoretical foundation for the designof new environmentally friendly and efficient water disinfectants.
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